/*
 * Copyright (c) 2022 Huawei Device Co., Ltd.
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

import { assert } from '../../assert';

/**
 * Prints or parses a string literal.
 * @private
 */
export class StringLiteralPrinterParser {

    constructor(literal) {
        this._literal = literal;
    }

    print(context, buf) {
        buf.append(this._literal);
        return true;
    }

    parse(context, text, position) {
        const length = text.length;
        assert(!(position > length || position < 0));

        if (context.subSequenceEquals(text, position, this._literal, 0, this._literal.length) === false) {
            return ~position;
        }
        return position + this._literal.length;
    }

    toString() {
        const converted = this._literal.replace("'", "''");
        return `'${converted}'`;
    }
}

